EP 3636634 A1 20200415 - METHOD FOR PURIFYING N-SUBSTITUTED MALEIMIDE
Title (en)
METHOD FOR PURIFYING N-SUBSTITUTED MALEIMIDE
Title (de)
VERFAHREN ZUR REINIGUNG VON N-SUBSTITUIERTEM MALEIMID
Title (fr)
PROCÉDÉ DE PURIFICATION DE MALÉIMIDE N-SUBSTITUÉ
Publication
Application
Priority
- KR 20170179166 A 20171226
- KR 2018007765 W 20180709
Abstract (en)
The present invention relates to a method for purifying N-substituted maleimide. More particularly, the present invention adopts an evaporation apparatus, which can previously remove impurities having higher boiling points than the N-substituted maleimide after removing an organic solvent from an N-substituted maleimide resulting solution, thereby achieving effects of minimizing the pressure loss and polymerization loss, and obtaining high-purity N-substituted maleimide.
IPC 8 full level
C07D 207/444 (2006.01); C08F 8/30 (2006.01)
CPC (source: EP KR US)
C07D 207/444 (2013.01 - KR US); C07D 207/448 (2013.01 - EP); C08F 2/01 (2013.01 - US); C08F 6/28 (2013.01 - EP); C08F 8/30 (2013.01 - KR); C08F 222/40 (2013.01 - US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3636634 A1 20200415; EP 3636634 A4 20200715; EP 3636634 B1 20220622; CN 110198927 A 20190903; CN 110198927 B 20220812; KR 102111638 B1 20200515; KR 20190077734 A 20190704; US 11345661 B2 20220531; US 2021355083 A1 20211118; WO 2019132144 A1 20190704
DOCDB simple family (application)
EP 18849469 A 20180709; CN 201880003826 A 20180709; KR 20170179166 A 20171226; KR 2018007765 W 20180709; US 201816336084 A 20180709